Unloading-platform.



E. KELLY.

UNLOADING PLATFORM. APPLICATION rusp. ma. 8, 1911.

m w -n 0 Y i mm f K m m n W m M D P n E. KELLY.

UNLOADING PLATFORM.

APPLICATION FILED MAR. a, 1911.

Patented Oct. 23, 1917.

2 SHEETS-SHEET 2.

awwmato'z EDW\N KELLY 5 crete work is being done.

EDWIN KELLY, OF CAZENOVIA, WISCONSIN. I

UNLOADING-PLATFORM.

To allwhomz't may concern I Be it known that I, EDWIN KELLY, acitizen of the United States, residing at Cazenovia, inthe county of Richland and State 5 of WVisconsin', haveinvented certain new and useful Improvements in Unloacling Platforms, of whichthe following is aspecification, reference being .had :to the accompanying drawings.

This invention relates to unloadingdevices and particularly to .means permitting the discharge of sand, gravel, or likernaterialssfrom wagons onto-a platform and from thence onto acarrier whereby the sands or gravel may be carried upward to a receiving bin from whence thesand or gravel maybe conducted from time to time to a mixer, such as .used in mixing concrete.

The .general object :of ,my invention is to do away with the necessity of .dumping wagons having sand; or gravel upon the ground, and-transporting thesand or gravel so dumped to the elevator by wheel-barrows, this being the common practice where con- Afurther object of the invention is to provide a device of this character which will permit one operator tocontrol the conveyance of the material from the wagon to the o bin or receptacle into which the sand or gravel is discharged and a further objectis to provide a tiltingplatformcoacting with a carrier, the construction being such that the loaded wagons may be driven upon the platform, discharge their contents thereon,

be driven off, and then the platformmay be tilted to discharge the gravel or sand on the platform into a carrier whereby it may beconveyed to the .bin.

provide a tilting platform, a carrier, and power operated means for driving the carrier and tilting the platform.

Other objects will appear in the course of the following description.

My invention is illustrated in the accompanying drawings, wherein:

Figure 1 is a top plan view of my construction;

Fig. 2 is a section on the line 22 of Fig. 1;

Fig. 3 is a fragmentary elevation of the carrier 35 and the adjacent end of the platform supporting frame;

I 5 Fig. 4c is a fragmentary sectional view of the same parts.

i Specification of Letters Patent. Paten A further object of the invention is to.

Referringto these figures, 10 designates a I tea oer. 2a, 1917. application filed March 8, 19 17. Seria1No.1 5 3,503.

platform, Ipreferablymade of boards mounted upon a suitable supportingframe includingthelbeams l1,whichare,connected to each other and to the platform in any suitable manner/ This tilting platform 10 is mounted with ma fframe comprising'the ITbeams 12 13 14L, and 15., The inner end of the platform is provided with trunnions adapted to rotate in suitable bearings mounted on. the {beams l2 and-at theouter,ends'of the beams .12, there are providedwthe uprights or standards 16,;having pulleys l7 ,at"their upper yends over. which passflcables'. .18 which extend. to the freeend of the platform. There are two of these Cables and the fcablesjrnay pass through any desired 5 blocks, sheaves or; other like arrangements of pulleys and; are illus trated as eachpassing ,over iafpulleyf l9 mounted uponthe beams 'at base of each standard 16..

Mountedflbetween the va ents 14; and 15 at one endof the space boundedlby these beams is a windingdru1n20. One ofv the, cables ,18 which is mounted upon the standard; 16 nearest .the winding drum passes directly from the pulley .19 to thehwinding drum, while the other cable Ifromthecable' farthest from the. winding idrum passes, parallel to the beam 13 and over a pulley 19*} and{ thence to the 1 winding drumlover pulleys .21. a; The winding drum 20 is, operatively connected to a driving: shaft 22 .which in turn is .drivenby anysuitable -motor, alc lutch may ,be, ,of course, provided for connecting, or ,di scon necting this winding drum with or from the 1' position.

Mounted upon the beams 14 and 15 are the carrier supporting rollers 23 and 24 which support the end of the carrier 25, this carrier resting upon. and operating over the idler rollers 26, these being mounted upon shafts 27 supported in bearings 28. The rollers 23 and 24 are also mounted on shafts 29 supported in bearings 28 and these shafts carry sprocket wheels 30 and a sprocket chain 31 passes over these sprocket wheels so that the two winding drums have driving connection with each other. The shaft 29 nearest the engine is also provided with a sprocket wheel 32 over which passes a sprocket chain 33 having driving engagement with a sprocket wheel 34 mounted upon the engine shaft. The endless carrier 25 may be of any suitable construction and I do not wish to limit myself to any particular form for this carrier. Flash boards are disposed on each side of the endless carrier so as to retain the sand or gravel thereon, it being understood, of course, that the inner edge of the platform 10' is disposed above the flash boards.

At the end of the platform opposite the engine is an elevator designated generally 35 which may be of any suitable construction, the elevator extending upward and discharging into a bin 86. The elevator is illustrated as an ordinary endless elevator passingover a driving wheel 37 mounted shaft disposed below the shaft supporting the drum 24c and this shaft 38 is operatively geared to the'shaft of the drum 24 in any suitable manner so that the power of the engine'maybe used to drive the elevator 35. The gravel or sand is carried into.

the bin 36 and from thence may be delivered as wanted into" a concrete mixer of any ordinary type. v j

Disposed at opposite ends of the platform 10 'and mounted upon the beams 12 are the run-ways 39' whereby wagons may be driven up upon the platform 10 when the platform is lowered and driven off from the platform 10. In actual practice, the platform 10 will be about 1 above the ground and will rest firmly in its lowered position upon the supporting frame formed of the beams 12 and 13.

In practical operation, the wagons will be driven upon the platform 10, the contents of the wagons will be dumped upon the platforms, and the wagons then driven off. The operator then throws inthe clutch which'connects the winding drum 30 with V the engine shaft and this causes the platform to be tilted to acertain degree so that the sand or gravel on the platform will be discharged onto the endless carrier 25. This carrier is operating constantly and delivers Gopies of this patent maybe obtained for five cents each, by addressing the Commissioner of Patents,

1,2es,eas

ported from place to place as difierent jobs require. The construction is particularly designed for the use of contractors to a concrete work but it is obvious that it may be used 'for other purposes. It will, likewise, be'obvious that while I have illustrated certain details of construction yet these details may be varied in many ways without departure from the spirit of the 111- vention.

Having described the invention, what is claimed is:

An unloading device including a supporting frame having longitudinally extending parallel beams in spaced relation to each other, and beams extending transversely of the first named beams, an endless carrier moving between the two parallel beams, rollers mounted between the parallel beams and supporting the endless carrier, upwardly inclined sides operatively' supported upon the parallel beams on each side of the carrier, brackets extending upward from the said beams to a position adjacent the edge of one of said sides, 'a platform pivotally mounted upon said brackets and having its inner edge extending over the car-.

rier, and power operated means for tilting the carrier from a horizontal to an inclined position.

In testimony whereof I hereunto my signature in the presence of two witnesses;

EDWIN KELLY.

WVitnesses: I 7

vGrins. BRIGGS, WILLIAM SoHUL'rz.

Washington, D. G. 

